Prefabricated crack propagation in translucent alumina ceramic sheets during flame thermal shock | |
Li QX(李庆显)1,2,4; Li YQ(李俞桥)1,2,4; Li J3; Li L(李龙)1,2,4; Wu XF5; Shao YF(邵颖峰)1,2,4; Charles Y3; Barboura S3; Song F(宋凡)1,2,4 | |
发表期刊 | ENGINEERING FRACTURE MECHANICS |
2022-03-15 | |
卷号 | 263页码:13 |
ISSN | 0013-7944 |
摘要 | The prefabricated cracks propagation of ceramic under flame thermal shock was studied by realtime observation. The experimental results show that wing cracks are generated from both tips of the prefabricated crack, and the complete failure of the samples is a high-speed process. The crack propagation speed is fast at first and then gradually slows down. The maximum propagation speed of the near flame tip increases with the prefabricated crack distance to the heated surface, while an inverse trend is observed for the far flame tip. The effect of prefabricated crack angle on thermal shock crack propagation was also considered. In addition, numerical simulations based on dynamic fracture mechanics were carried out to reproduce the entire cracking process. To this end, the relation between the dynamic stress intensity factors and the crack growth speed in the speed range of 100 m/s to 2600 m/s was identified by combing experiments and numerical simulations. The simulation results and the above-mentioned relation are consistent with the experimental observations. The numerical model can faithfully reproduce the crack evolution process of the thermal shock, which is difficult to observe in an experiment due to the high speed of the cracking process. |
关键词 | Thermal shock Crack speed Dynamic stress intensity factor Numerical simulation Real-time |
DOI | 10.1016/j.engfracmech.2022.108285 |
收录类别 | SCI ; EI |
语种 | 英语 |
WOS记录号 | WOS:000782647500003 |
关键词[WOS] | HIGH TEMPERATURE CERAMICS ; NUMERICAL SIMULATIONS ; DYNAMIC FRACTURE ; GROWTH ; RESISTANCE ; PATTERNS ; BEHAVIOR ; MODEL |
WOS研究方向 | Mechanics |
WOS类目 | Mechanics |
资助项目 | National Natural Science Foundations of China[11972041] ; National Natural Science Foundations of China[11802033] ; YouthInnovation Promotion Association CAS[XDB22040102] ; Strategic Priority Research Program of the Chinese Academy of Sciences |
项目资助者 | National Natural Science Foundations of China ; YouthInnovation Promotion Association CAS ; Strategic Priority Research Program of the Chinese Academy of Sciences |
论文分区 | 一类 |
力学所作者排名 | 1 |
RpAuthor | 邵颖峰 ; Li, Jia |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://dspace.imech.ac.cn/handle/311007/88896 |
专题 | 非线性力学国家重点实验室 |
通讯作者 | Li J; Shao YF(邵颖峰) |
作者单位 | 1.Chinese Acad Sci, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; 2.Chinese Acad Sci, Beijing Key Lab Engn Construct & Mech, Inst Mech, Beijing 100190, Peoples R China; 3.Univ Sorbonne Paris Nord, CNRS, Lab Sci Procedes & Mat, LSPM,UPR 3407, F-93430 Villetaneuse, France; 4.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China; 5.Beijing Inst Struct & Environm Engn, Beijing 100076, Peoples R China |
推荐引用方式 GB/T 7714 | Li QX,Li YQ,Li J,et al. Prefabricated crack propagation in translucent alumina ceramic sheets during flame thermal shock[J]. ENGINEERING FRACTURE MECHANICS,2022,263:13. |
APA | Li QX.,Li YQ.,Li J.,Li L.,Wu XF.,...&Song F.(2022).Prefabricated crack propagation in translucent alumina ceramic sheets during flame thermal shock.ENGINEERING FRACTURE MECHANICS,263,13. |
MLA | Li QX,et al."Prefabricated crack propagation in translucent alumina ceramic sheets during flame thermal shock".ENGINEERING FRACTURE MECHANICS 263(2022):13. |
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Jp2022FA478_2022_Pre(7093KB) | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 |
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